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Archive.org Scanned Book Downloader Bookmarklet

A simple "1-click" javascript approach to downloading a scanned book from archive.org to read at your leisure on the device of your choosing w/out having to manually screenshot every pages of the book by hand. In short it's a glorified "Save Image As..." approach but consolidated down to "1 click". BTW there may be a much better option than this out there - I just built this as an autistic project to see if it would work.

Demo Video

Obligatory Legal/Disclaimer:

By using this script you agree to delete all book files/images after your 1 hour or 14 days is up! I don't support using this script for any other use cases. After all, none of us have ever kept a library book past it's return date, right?

Current aomenc recommended settings for sharpness and detail retention:

--cpu-used=4 --cq-level=16 --end-usage=q --lag-in-frames=48 --enable-fwd-kf=1 --aq-mode=1 --deltaq-mode=0 --enable-chroma-deltaq=1 --quant-b-adapt=1 --enable-qm=1 --min-q=1 --enable-keyframe-filtering=0 --arnr-strength=1 --arnr-maxframes=4 --sharpness=3 --enable-dnl-denoising=0 --disable-trellis-quant=0 --threads=64

General CQ guidelines:

40: Youtube quality
30: Watchable, fine for streaming or lower bitrate encodes
20: Good quality

TL'DR:

strace : sytemcall tracer : Traces system call summoned by a process from syscall table

System calls, Eg:

open syscall (__NR_open),
kill syscall (__NR_kill), 
getdents64 syscall (__NR_getdents64),

缘起

因为 Bilibili 莫名其妙吃回复，那就在这里存档。

原始内容见这里。

如无另行指定，默认回复 @LanceMoe。

预备 +TODO 改换文体，+FAQ 。

List of "Essential" 1.7.10 Mods

This is a list of Minecraft 1.7.10 mods that are not focused on adding new original content. Instead, they make the base game run better, or port over features from other versions of vanilla.

These lists try to comprehensively list all the available options. You will not want to use all of the listed mods at once.

Some of the listed mods require a Mixin bootstrap mod in order to work. See the Mixin mods section near the end of the document for information about that.

Background

Workplaces may enforce TOTP 2FA to be enabled Office 365 accounts, which require the Microsoft Authenticator app to be installed.

Regular TOTP applications (such as Aegis, Authy, or LastPass) cannot be used as Microsoft uses a proprietary scheme called phonefactor. Furthermore, the application requires Google Services Framework (GSF) to be installed (likely to provide device notifications), and will refuse to work when it is not present on the device.

Forunately, after the registration is complete, the underlying mechanism the app uses to generate TOTP codes is regular otpauth, and its secrets can be exported with a little bit of effort.

Extracting the keys

TPM provides zero practical security

TPM (Trusted Platform Module) is as useful for preventing real attackers as the TSA is at preventing real terrorists. The architecture is fundamentally flawed and most existing implementations are completely broken. I thought this argument was settled decades ago[1] when "trusted computing" was introduced mostly as a way to provide DRM and ownership capabilities to organizations. It has largely failed to impact the consumer market when it was introduced back in the early 2000s. However, recently there seems to be a movement by certain parties to reintroduce this failed product back to the market. Microsoft argues that in order to use Windows 11, you need TPM 2.0 compatible hardware because[2]:

The Trusted Platform Module(TPM) requirement ena

	#!/bin/bash
	currentAttempt=0
	totalAttempts=10
	delay=15

	while [ $currentAttempt -lt $totalAttempts ]
	do
	currentAttempt=$(( $currentAttempt + 1 ))

	echo "Attempt $currentAttempt of $totalAttempts..."

	/**** Benchmarking CRTP without virtual dispatch in C#.
	See https://geelaw.blog/entries/csharp-crtp-static-polymorphism-friendship/

	Results on my Surface Book 2:

	\| milliseconds \| struct, non-virtual \| struct, virtual \| virtual \|
	\| :----------: \| :-----------------: \| :-------------: \| :-----: \|
	\| x86 Core 3.1 \| 1065 \| 1405 \| 1431 \|
	\| x64 Core 3.1 \| 1015 \| 1371 \| 1418 \|
	\| x86 Fx 4.7.2 \| 1160 \| 1501 \| 1490 \|

	public class Program
	{
	// https://docs.microsoft.com/en-us/archive/msdn-magazine/2019/november/csharp-iterating-with-async-enumerables-in-csharp-8
	public static async Task Main(string[] args)
	{
	using var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(300));
	/*
	* Passing the token directly to the method is easier, but it doesn’t work when you’re handed an arbitrary IAsyncEnumerable<T>
	* from some other source but still want to be able to request cancellation of everything that composes it.
	* In corner-cases, it can also be advantageous to pass the token to GetAsyncEnumerator, as doing so avoids “burning in” the token